1. The problem statement, all variables and given/known data Solving for base angles in a congruent triangle One of the base angles in a congruent triangle is 3x+5 The other base angle is unknown The remaining angle is x+16. 2. Relevant equations See attached PDF 3. The attempt at a solution Because two base angles in a congruent triangle are the same and I have been given one of them I did the following:- 3x+5 = 3x+5 (I then tried to solve for x but this cancels out to 0.) I want to know why this is the case, i think it is because i have 2 unknown variables but only1 equation.